Home / 36,517.00-54,781.55-12,818.40

Finding the Fourth Proportional to 36,517.00, 54,781.55 and 12,818.40

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Solution

The fourth proportional to 36,517.00, 54,781.55 and 12,818.40 is: 19,229.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,517.00 : 54,781.55 = 12,818.40 : x
  2. Step 2: Convert to fraction form
    36,517.00/54,781.55 = 12,818.40/x
  3. Step 3: Cross multiply
    36,517.00x = 54,781.55 × 12,818.40
  4. Step 4: Simplify right side
    36,517.00x = 702,211,546.61
  5. Step 5: Solve for x
    x = 702,211,546.61/36,517.00
  6. Step 6: Final answer
    x = 19,229.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.